MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for exploiting vulnerabilities or redirecting users. The high number of external URIs, many pointing to unknown or potentially disposable domains, suggests a link farm or phishing attempt. ClamAV and ML classifiers also flagged this file as malicious, indicating a high likelihood of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://kurek-rowery.pl/user_pict/file/tudijubibafifatuxenoxonaz.pdf In PDF document text
- http://www.moyekolodin.com/files/xubapipatasoxojinikorebal.pdfIn PDF document text
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/as65b431hla7lfvq6s40ej01m5/28106631110.pdfIn PDF document text
- https://best-label.com/upload/files/zugokus.pdfIn PDF document text
- https://fgcrubochi.com.ng/ckfinder/userfiles/files/xexexe.pdfIn PDF document text
- http://simonide.org/userfiles/file/95614699608.pdfIn PDF document text
- https://ldoris.com/upfile/files/20210913062540.pdfIn PDF document text
- http://imbirimbir.ru/files/karexotadupuzud.pdfIn PDF document text
- http://xn--80aaaaadfwa5aftjhxrkcrg8iwc.xn--p1ai/pict/file/52174591794.pdfIn PDF document text
- http://brukikostka.pl/uploads/page/file/lixitotapak.pdfIn PDF document text
- https://gjbuyerbroker.com/userfiles/file/40710919682.pdfIn PDF document text
- https://vienhung.com/webroot/img/files/sarekiwixami.pdfIn PDF document text
- https://mpressivelabels.com.au/application/third_party/ckfinder/userfiles/files/zizodewam.pdfIn PDF document text
- http://learnersdigest.org/userfiles/file/suvekigijeberefuwuvazefof.pdfIn PDF document text
- http://gmart-express.com/demo/uploadpic/file/26974571737.pdfIn PDF document text
- https://reformedgeneration.com/userfiles/file/ponowaperagizofoxaz.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/tozip.pdfIn PDF document text
- http://ucg-eg.com/userfiles/file/xurodoxuguzowid.pdfIn PDF document text
- https://www.vek-bg.com/app/templates/js/ckfinder/userfiles/files/55923088660.pdfIn PDF document text
- https://hometeamcorp.com/images/usr/gibopadatogimoxoj.pdfIn PDF document text
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab3e73da6f---pawedubite.pdfIn PDF document text
- http://atrsara.ir/resource/files/51337993587.pdfIn PDF document text
- http://isystem.hu/userfiles/file/19066975781.pdfIn PDF document text
- http://cuatro-pr.org/sites/default/files/file/605653575.pdfIn PDF document text
- http://chalappuram.com/userfiles/file/radodeduxitagisatikos.pdfIn PDF document text
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/17030578366.pdfIn PDF document text
- https://innovaciones-plasticas.com/imagenes_cont/sitio/documentos/21730721215.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=nice+m+wordsPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b272.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB272 | 10184 bytes |
SHA-256: 022fe9ba37d0eaf655b0dd00439869f92df82021c705247b768c1098b5f09122 |
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font_01_sfnt_off0000c952.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC952 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE164 | 16184 bytes |
SHA-256: 35df4dea4aa925be4c1978b7837ba65ec85389fe902e083cd1fcb98bb2fefdb4 |
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